Call:
lm(formula = mpg ~ wt + disp, data = df)
Residuals:
Min 1Q Median 3Q Max
-3.4087 -2.3243 -0.7683 1.7721 6.3484
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 34.96055 2.16454 16.151 4.91e-16 ***
wt -3.35082 1.16413 -2.878 0.00743 **
disp -0.01773 0.00919 -1.929 0.06362 .
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Residual standard error: 2.917 on 29 degrees of freedom
Multiple R-squared: 0.7809, Adjusted R-squared: 0.7658
F-statistic: 51.69 on 2 and 29 DF, p-value: 2.744e-10
Call:
lm(formula = mpg ~ wt * disp, data = df)
Residuals:
Min 1Q Median 3Q Max
-3.267 -1.677 -0.836 1.351 5.017
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 44.081998 3.123063 14.115 2.96e-14 ***
wt -6.495680 1.313383 -4.946 3.22e-05 ***
disp -0.056358 0.013239 -4.257 0.00021 ***
wt:disp 0.011705 0.003255 3.596 0.00123 **
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Residual standard error: 2.455 on 28 degrees of freedom
Multiple R-squared: 0.8501, Adjusted R-squared: 0.8341
F-statistic: 52.95 on 3 and 28 DF, p-value: 1.158e-11
| Atributo | mean | sd | median | trimmed | mad | min | max | range | skew | kurtosis | se |
|---|---|---|---|---|---|---|---|---|---|---|---|
| mpg | 20.090625 | 6.0269481 | 19.200 | 19.696154 | 5.4114900 | 10.400 | 33.900 | 23.500 | 0.6106550 | -0.3727660 | 1.0654240 |
| cyl* | 2.093750 | 0.8929608 | 2.000 | 2.115385 | 1.4826000 | 1.000 | 3.000 | 2.000 | -0.1746119 | -1.7621198 | 0.1578547 |
| disp | 230.721875 | 123.9386938 | 196.300 | 222.523077 | 140.4763500 | 71.100 | 472.000 | 400.900 | 0.3816570 | -1.2072119 | 21.9094727 |
| hp | 146.687500 | 68.5628685 | 123.000 | 141.192308 | 77.0952000 | 52.000 | 335.000 | 283.000 | 0.7260237 | -0.1355511 | 12.1203173 |
| drat | 3.596563 | 0.5346787 | 3.695 | 3.579231 | 0.7042350 | 2.760 | 4.930 | 2.170 | 0.2659039 | -0.7147006 | 0.0945187 |
| wt | 3.217250 | 0.9784574 | 3.325 | 3.152692 | 0.7672455 | 1.513 | 5.424 | 3.911 | 0.4231465 | -0.0227108 | 0.1729685 |
| qsec | 17.848750 | 1.7869432 | 17.710 | 17.827692 | 1.4158830 | 14.500 | 22.900 | 8.400 | 0.3690453 | 0.3351142 | 0.3158899 |
| vs* | 1.437500 | 0.5040161 | 1.000 | 1.423077 | 0.0000000 | 1.000 | 2.000 | 1.000 | 0.2402577 | -2.0019376 | 0.0890983 |
| am* | 1.406250 | 0.4989909 | 1.000 | 1.384615 | 0.0000000 | 1.000 | 2.000 | 1.000 | 0.3640159 | -1.9247414 | 0.0882100 |
| gear* | 1.687500 | 0.7378041 | 2.000 | 1.615385 | 1.4826000 | 1.000 | 3.000 | 2.000 | 0.5288545 | -1.0697507 | 0.1304266 |
| carb* | 2.718750 | 1.3733494 | 2.000 | 2.653846 | 1.4826000 | 1.000 | 6.000 | 5.000 | 0.3504105 | -0.9467971 | 0.2427762 |